The cure for boredom?

It seems the more and more i game now a days the border I get. It’s to the point where it’s all been done before. I'm going through my 8th prestige in CoD4 now; the only saving grace to that game is the fact that it’s a way to chill with friends while relieving some stress by placing a bullet between the eyes of some random person. I could always go back to WoW but why? Playing for 2200-2300 arena ratings again with the hours of a full time job? Has the gaming world simply become stale with the same old rehashed themes, or am i expecting too much and simply need a new hobby?